#define _CRT_SECURE_NO_WARNINGS
#include"game.h"

void init_board(char board[ROW][COL],int row, int col)
{
	int i = 0;
	int j = 0;
	for(i=0;i<row;i++)
	{
		for(j=0;j<col;j++)
		{
			board[i][j] = ' ';
		}
	}

}

void printf_board(char board[ROW][COL],int row,int col)
{
	int a = 0;
	int b = 0;
	//打印“  | |  ”
	for(a = 0;a < row;a++)
	{
		for(b = 0;b < col;b++)
		{
			printf(" %c ", board[a][b]);
			if (b < col - 1)
				printf("|");
		}
		printf("\n");
		//打印“---|---|---”
		if (a < row - 1)
		{
			for (b = 0; b < col; b++)
			{
				printf("---");
				if (b < col - 1)
					printf("|");
			}
			printf("\n");
		}
	}
}

void play_move(char board[ROW][COL], int row, int col)
{
	int x = 0;
	int y = 0;
	printf("玩家下棋：>\n");  
    
	while(1)
	{
		printf("请输入坐标（如：1 1 ）：\n");
		scanf("%d %d", &x, &y);
		//判断坐标的合法性/是否被占用？
		if (x >= 1 && x <= row && y >= 1 && y <= col)
		{
			if(board[x - 1][y - 1]==' ')//玩家输入的值是大于数组的，所以要-1处理。
			{
				board[x - 1][y - 1] = '*';//坐标合法将空格置换成*
				break;
			}

			else
			{
				printf("该坐标被占用，请重新输入！\n");
			}
		}
		else
		{
			printf("坐标非法，请重新输入！\n");
		}
	}
}

void computer_move(char board[ROW][COL], int row, int col)  
{
	printf("电脑下棋：>\n");
	while (1)
	{
		int x = rand() % row;
		int y = rand() % col;
		if (board[x][y] == ' ')
		{
			board[x][y] = '#';
			break;
		}
	}
}
//棋盘未满返回0否则返回1
static int is_full(char board[ROW][COL], int row, int col)
{
	int i = 0;
	for(i = 0;i < row;i++)
	{
		int j = 0;
		for(j = 0;j < col;j++)
		{
			if(' '==board[i][j])
			{
				return 0;
			}
		}
	}
	return 1;
}

char is_win(char board[ROW][COL],int row,int col)
{
	int i = 0;
	for(i = 0;i < row;i++)
	{
		if(board[i][0]==board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')
		{
			return board[i][0];
		}
		
	}
	for (i = 0; i < col; i++)
	{
		if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[0][i] != ' ')
		{
			return board[0][i];
		}

	}
	if(board[0][0]==board[1][1] && board[1][1]==board[2][2] && board[1][1]!=' ')
	{
		return board[1][1];
	}
	if (board[2][0] == board[1][1] && board[1][1] == board[0][2] && board[1][1] != ' ')
	{
		return board[1][1];
	}
	//判断平局
	if(is_full(board,row,col)==1)
	{
		return 'Q';
	}
	return 'C';

}

